The only reason the TBM can cause a freeze or crash with scenery is because, unlike most other add ons, it uses terrain radar, and is reading the scenery as it flies over it. A corrupt scenery file, no matter how small an error it has, and no matter where it is, can cause it to lock up. If the scenery is installed on a second hard drive, it could also cause a lock up. Although this is not confirmed yet.
What I'm concerned about is missing scenery files, as indicated in your log file. I don't have OrbX, but maybe you can ask them about it on their forums. Show them this section from your log.